Numbers can fool you if you don't understand them. 1.6Ghz is overclocked speed (used for marketing) which throttle down even faster resulting in a poorer overall performance. Armbian runs on lower speed ... and faster, cooler and consume less energy. We made a waste amount of tests to find those settings. Board makers never go this far.

H3 version is little more supported than H5 at the moment but things changing quickly.